[CentOS] Large scale Postfix/Cyrus email system for 100,000+ users

Christopher Chan wrote:
>> I don't recall ever having a problem with postgresql.
>
> I guess the latest versions are more crash resilient. But still no 
> builtin replication.

This has gotten far afield of CentOS, but recent vintages of Postgresql 
DO support replication.  :)

http://www.postgresql.org/about/

Best,